Development of a half-meter scale Traveling-Wave (TW) SRF cavity

Conference · Wed Oct 09 04:00:00 EDT 2024

OSTI ID:2462777

Furuta, Fumio ^[1]; Kazakov, Sergey ^[1]; Khabiboulline, Timergali ^[1]; McGee, Kellen ^[1]; Ng, Trista ^[1]; Yakovlev, Vyacheslav ^[1]

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1. Fermilab

Traveling-wave technology can push the accelerator field gradient of niobium SRF cavity to 70MV/m or higher beyond the fundamental limit of 50~60MV/m in Standing-Wave regime. The 1st demonstration of TW resonance excitation in a proof-of-principle 3-cell SRF cavity in 2K liquid helium was successfully carried out at Fermilab in collaboration with Euclid Techlabs. In parallel with that, the RF design process of 0.5~1 meter scale TW cavity was begun at Fermilab for advancing TW technologies necessary more for future accelerator-scale one. Considering the physical dimensions of existing SRF facilities (for fabrication, processing, and cryogenic testing) and the lessons learned from the 3-cell, Fermilab has proposed a preliminary RF design of a half-meter scale TW SRF cavity. It consists of a 7-cell structure and a power feedback waveguide (WG) loop with new RF configurations to control TW resonance. Here we report a preliminary RF design, development plans, and activities.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 2462777
• Report Number(s): FERMILAB-CONF-24-0574-TD; oai:inspirehep.net:2838267
• Country of Publication: United States
• Language: English

Related Subjects

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